Point Forecast: Reston VA
 38.95N 77.36W (Elev. 446 ft)
Last Update: 1:30 pm EDT Jul 13, 2025
Tabular Forecast
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Weather ElementsFire WeatherAviation Weather
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)

Rain
Thunder
Fog
Mixing Height  
Trans. Wind  
Vent Rate (x1000 mph-ft)
Atmospheric Dispersion Index
Low Visibility Occurrence Risk Index
Ceiling Height
Visibility

48-Hour Period Starting:       Back 2 Days  

Date07/14
Hour (EDT)000102030405060708091011121314151617181920212223
Temperature (°F)767575747474737375777982848686868684838179777676
Dewpoint (°F)747473747373737375757676767776767676757675757575
Heat Index (°F)76757575777989939796969693908779777676
Surface Wind (mph)333222222223555555333222
Wind DirSSSSSSSESESSSSSSSSSSSSSSSSE
Gust
Sky Cover (%)636862685960686279706958576063656170778883767778
Precipitation Potential (%)444425201917151315121118324044474153658255555555
Relative Humidity (%)9497941009797100100100949182777572727277778588949797
RainChcChcChcSChcSChcSChcSChc--SChc----SChcChcChcChcChcChcChcLklyOcnlLklyLklyLklyLkly
ThunderChcChc------------------SChcChcChcChcChcChcChcLklyLklyChcChcChcSChc

Date07/15
Hour (EDT)000102030405060708091011121314151617181920212223
Temperature (°F)757574737373737475778082848586868584838281807877
Dewpoint (°F)757474737373737474747575757575757575757575757575
Heat Index (°F)757575778589929495959492908987857877
Surface Wind (mph)222222222222335555533333
Wind DirSSSSWWNWNWNWNWNEESESSSSSSSSSSS
Gust
Sky Cover (%)787777777878777776726864697580808080808050494948
Precipitation Potential (%)555524242424242430303030303070707070707021212121
Relative Humidity (%)1009710010010010010010097908579747270707274777982859194
RainLklyLklySChcSChcSChcSChcSChcSChcChcChcChcChcChcChcLklyLklyLklyLklyLklyLklySChcSChcSChcSChc
ThunderSChcSChcSChcSChcSChcSChcSChcSChc------SChcSChcSChcChcChcChcChcChcChcSChcSChcSChc--

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